Home / 31,208.80-46,813.20-10,432.30

Finding the Fourth Proportional to 31,208.80, 46,813.20 and 10,432.30

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Solution

The fourth proportional to 31,208.80, 46,813.20 and 10,432.30 is: 15,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.80 : 46,813.20 = 10,432.30 : x
  2. Step 2: Convert to fraction form
    31,208.80/46,813.20 = 10,432.30/x
  3. Step 3: Cross multiply
    31,208.80x = 46,813.20 × 10,432.30
  4. Step 4: Simplify right side
    31,208.80x = 488,369,346.36
  5. Step 5: Solve for x
    x = 488,369,346.36/31,208.80
  6. Step 6: Final answer
    x = 15,648.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.